Finger Positions

F#maj7/D# diagram
Root Note F#
Name F# major seventh over D#
Intervals 1P-3M-5P-7M
Relative Minor D#m
Notes D#, F#, A#, C#, F
Aliases F#maj7, F#Δ, F#ma7, F#M7, F#Maj7, F#^7

How to play the F#maj7/D# Chord

The F#maj7/D# is a fundamental major chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the F# major seventh over D# is built using the 1P, 3M, 5P, 7M intervals. In the key of F# Major, this chord functions as the I chord.

Common Progressions

In music composition, the F#maj7/D# chord is often used to create tension or resolution.

I-V-vi-IV

F# → C# → D#m → B

vi-IV-I-V

D#m → B → F# → C#

The Diatonic Family

Understanding the "family" of chords that belong to F# helps with transposition and ear training.

Triads

F# G#m A#m B C# D#m Fdim

7ths

F#maj7 G#m7 A#m7 Bmaj7 C#7 D#m7 Fm7b5

Scale Compatibility

View All Scales
Major Bebop Lydian Ionian Pentatonic Lydian Pentatonic Augmented Double Harmonic Lydian Augmented Heptatonic Harmonic Major Double Harmonic Major Lydian #9 Purvi Raga Bebop Major Ichikosucho Kafi Raga

* 15 scales found containing the notes D#, F#, A#, C#, F.

Acoustic & Digital Analysis

Digital footprint of the F#maj7/D# chord for MIDI programming and synthesizer sound design.

MIDI Numbers 63, 66, 70, 61, 65
Frequencies (Hz)

311.1269837220809, 369.9944227116344, 466.1637615180899, 277.1826309768721, 349.2282314330039